Thill-coupling



(No Model.)

J. L. COOK.

THILL GOUPLING. No. 371,428. Patented Oct. 11, 1887.

WITNESSES I IJVVEJVTO R W M81000}.

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iJNITnn STATES PATENT OFFICE.

JAMES L. COOK, OF SPRINGFIELD, ILLINOIS.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 371,428, dated @ctoloer11, 1887.

Application filed June 30, 1857.

Serial X0. 243,054 (No model.)

zen of the United States, residing at Spring field, in the county ofSangamon and State of Illinois, have invented certain new and usefulImprovements in Thin-Couplings; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in thill-couplings; and it consistsin the novel construction and arrangement of devices,1:s hereinafterspecified and claimed.

In the accompanying drawings, Figure 1 is a longitudinal verticalsectional view of a thillcoupling constructedaccordingtornyimprovements. of the same on line mm, Fig. 1. Fig. 3 is aView ofthe double-armed lever removed, and Fig. I is a crossscctiontaken on the lines y 3 of Fig. 3.

The letter A of the drawings represents a clip attached to the axle-treein the usual mauner by nuts and screws. This clip is constructed wit-h abifurcated front extension, (marked 13,) which is adapted to receivetherear end of a thill and hold it securely by means of a pin or bolt,0, as shown in Fig. 1 of the drawings, the bolt requiring no thread ornut.

The letter D represents a casting,the upper end of the rear wall ofwhich is curved rearwardly, as shown at a, and adapted to clasp theeccentricshaped and double-armed lever, hereinafter described, and thebottom portion of said casting constitutes a rectangular recess forholding a rubber block, also hereinafter mentioned.

The letter E represents a lever provided with two arms, as shown in Fig.3. The central portion of this lever, which is clasped by the curvedextension of the casting D, is made round in cross section, while itsends between said round portion and handles are camshaped, as shown inFigs. 2 and3 ot' the drawlugs.

The letter H represents a block of rubber which rests in the rectangularrecess formed in casting D, and is constructed with a concave upperface,which,when on duty, rests against Fig. 2 is a transverse sectionalview the lower side of the thill, as shown in Fig. 1. I usually providea plate. (marked 0,) which is interposed between the bottom of therecess in casting D and the rubber block H.

Theletterg represents a thumb-screw, which is passed through the bottomof the casting D, in a. threaded opening, with its point resting againstthe bottom of plate 0, the point being riveted into a countersink toprevent the thumb screw from coming out.

My invention is operated as follows, namely: After the several partshave been placed in position the arms of the cam-levcr E are turneddownwardly, each arm of which fits closely over the ends of the pin orbolt G and holds the same securely. The thumbscrew g is then turneduntil the desired pressure is obtained against the lower side of thethill,and the work is completed.

It is obvious that by this construction the cam-shaped lever will holdits arms securely over the ends of the pin or bolt 0, and by means ofthe thumb-screw g the rubber block can be given such a pressure againstthe thill that all rattling and noise will be avoided. or bolt 0, beingheld in position by the cam lever E, (which can be raised or lowered byloosening the thumb screw,) does away with the necessity of anut on thebolt, enabling the operator to. uncouple the thill with case andrapidity.

I claim as my invention 1. In a thill-coupling, the combination,'withthe clip having the perforated lugs, of the angular casting adapted toreceive the rubber, the thill-bolt, and the cam-bolt having the leversor arms adapted to embrace the ends of the thill-bolt, substantially asspecified.

2. The combination, in a thill coupling, of

I the casting adapted to receive the rubber block,

and the cam-boltforminga fulcrum for the said casting and having lateralarms adapted to prevent the displacement of the thill-bolt,substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES L. COOK. \Vitnesscs:

SHELBY G. DORWIN, HENRY BURNS.

The pin

